adjust doxygen
Merge branch 'master' of https://github.com/hpicgs/glow.git
Manually resolve includes if OpenGL shader includes aren't available (refs #72)

Recursive includes aren't supported yet
Merge branch 'master' of github.com:hpicgs/glow
Use streams instead of string addition
Fixes for NamedStrings and ShaderCompiler (refs #72)
Simple shader include example for OpenGL 3.1 (refs #72, #28)
Support recursive and nested includes (refs #72)
Extract VertexAttributeBindingImplementation (closes #85)
Fixed windows compile bug
Check if shader has source while compiling and doesn't remove multiple version macros in shader includes (refs #76)
Split shader source updating and compilation (fixes #87)
Lazy compilation of shaders (fixes #88)
Document driver specific behavior during linkage and compilation of shaders and programs
Improve version fallback (closes #86)
Merge branch 'master' of github.com:hpicgs/glow
Revert check for GLEW_ARB_vertex_attrib_binding in VertexAttributeBinding
Add missing forward declarations in FrameBufferObject.h
Update release of glow in readme
Update README.md